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BUG/MEDIUM: h2: When sending in HTX, make sure the caller knows we sent all.

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In h2_snd_buf(), when running with htx, make sure we return the amount of
data the caller specified, if we emptied the buffer, as it is what the
caller expects, and will lead to him properly consider the buffer to be
empty.
This commit is contained in:
Olivier Houchard 2018-12-03 19:13:29 +01:00 committed by Willy Tarreau
parent f3d480517f
commit 8122a8d681
1 changed files with 9 additions and 0 deletions
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9
src/mux_h2.c
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@ -4559,6 +4559,7 @@ static void h2_stop_senders(struct h2c *h2c)
static size_t h2_snd_buf(struct conn_stream *cs, struct buffer *buf, size_t count, int flags)
{
struct h2s *h2s = cs->ctx;
size_t orig_count = count;
size_t total = 0;
size_t ret;
struct htx *htx;
@ -4722,6 +4723,14 @@ static size_t h2_snd_buf(struct conn_stream *cs, struct buffer *buf, size_t coun
(h2s->flags & H2_SF_BLK_MBUSY))
h2_stop_senders(h2s->h2c);
/* If we're running HTX, and we read the whole buffer, then pretend
* we read exactly what the caller specified, as with HTX the caller
* will always give the buffer size, instead of the amount of data
* available.
*/
if (htx && !b_data(buf))
total = orig_count;
if (total > 0) {
if (!(h2s->h2c->wait_event.wait_reason & SUB_CAN_SEND))
tasklet_wakeup(h2s->h2c->wait_event.task);